I happen to love our separate changing table. I didn't want to take up room on the dresser for changing and figured once the baby got big they would have to be moved.
DD is 20 months and still gets changed on the change table. I hate changing her on the floor plus I'm also pregnant again and find it much easier to change her on an elevated surface. It also has a lot of good storage for diapers, wipes, creams etc. so it has been well worth the money for us (and I think we only spent about $70 on it).